| その他負債(除く投資活動関連、財務活動関連)の増減額(△は減少) | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| その他負債(除く投資活動関連、財務活動関連)の増減額(△は減少)、営業活動によるキャッシュ・フロー、保険業 | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Increase (decrease) in other investing and financing activities liabilities | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Increase (decrease) in other investing and financing activities liabilities-OpeCF-INS | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |